Dynamic properties of subalpine coniferous forests in Nepal Himalaya and Hokkaido [an abstract of dissertation and a summary of dissertation review]Dynamic properties of subalpine coniferous forests in Nepal Himalaya and Hokkaido [an abstract of dissertation and a summary of dissertation review]ネパール・ヒマラヤと北海道の亜高山帯針葉樹林の動態特性 [論文内容及び審査の要旨]